Let the code speaks for the question:
>>> class A(object):
... a = None
... def b(self):
... pass
...
>>> a = A()
>>> a.a is a.a
True
>>> a.b is a.b
False
>>> class B(object):
... a = None
... @staticmethod
... def b():
... pass
...
>>> b = B()
>>> b.a is b.a
True
>>> b.b is b.b
True
>>> class C(object):
... a = None
... @classmethod
... def b(cls):
... pass
...
>>> c = C()
>>> c.a is c.a
True
>>> c.b is c.b
False
This will bound the method to the object of class.
a.b is a.b
<bound method A.b of <__main__.A object at 0x00000294E2DA1780>>
This will address the method directly because we can call static method directly with a class name it is not necessary to create an object to call static method.
b.b is b.b
<function B.b at 0x00000294E2C49D08>
This will bound the method directly to a class. You can call that method directly with a class name without creating an object or with object.
c.b is c.b
<bound method C.b of <class '__main__.C'>>